Editing Level

[[File:Levelsend.png|thumb|260px|Level endings of the ''[[Super Mario All-Stars + Super Mario World]]'' versions of ''[[Super Mario Bros.]]'' / ''[[Super Mario Bros.: The Lost Levels]]'' (top left), ''[[Super Mario Bros. 2]]'' (top right), ''[[Super Mario Bros. 3]]'' (bottom left), and ''[[Super Mario World]]'' (bottom right)]]

[[Genre#Platform games|Platform game]]s generally have multiple '''levels''' (also called '''courses''', '''stages''', and '''areas'''), which contain obstacles, [[list of enemies|enemies]], [[List of items|item]]s, and the like. [[Mario]], [[Luigi]], or another playable character (or characters) must pass through levels to access more of them and ultimately complete the game. However, some levels may be optional to complete, such as due to a secret method that allows them to be skipped (such as a [[Warp Zone]]) or the level itself being a secret.

This theme often features grass, hills, [[tree]]s, and slopes. It is usually the easiest kind of level theme, as it is normally the first level or world theme encountered in each game. It is common for this level theme to introduce common level features and mechanics, such as [[jump]]ing, breaking [[block]]s, and new power-ups. Common enemies here include [[Goomba]]s, [[Koopa Troopa]]s, [[Piranha Plant]]s, [[Hammer Bro]]s, [[Shy Guy]]s, [[Spiny|Spinies]], [[Rex]]es, and [[Chargin' Chuck]]s. [[Pit|Bottomless pit]]s are some of the more dangerous features in these levels. This level theme often has secret areas that lead to sky- or underground-themed locations. In 3D games, grassland levels offer more exploration and sometimes feature an easy boss battle. The music on this level theme, occasionally officially known as the "[[Ground Theme]]," usually serves as a main theme of the whole game.

This level theme features ghosts as its main enemies, such as [[Boo]]s, [[Peepa]]s, [[Eerie]]s, and [[Broozer]]s. Bat, pumpkin, and rat enemies such as Swoops, [[Splunkin]]s, and [[Scaredy Rat]]s are also fairly common. This level type usually takes place in a [[Ghost House]], often rife with ghosts and full of unusual objects such as fake doors and/or possessed objects, such as floating couches. However, this theme can also take place in a haunted forest with dead trees and [[Crowber]]s to dodge or even on haunted shipwrecks with intertwined water mechanics. These levels often feature maze-like navigation and secret exits.

This level theme takes place in a jungle with [[Poison (obstacle)|poisonous swamps]], [[swinging vine]]s, and exotic enemies such as [[Wiggler]]s, [[Scuttlebug]]s, and [[Bramball]]s. Forests and jungles may require the player to get across a swamp, such as riding [[Dorrie]]. Forest levels in 3D games often feature treetops that challenge the characters' jumping skills. In the ''[[Donkey Kong Country (series)|Donkey Kong Country]]'' series, jungle levels typically serve as the beginner stages, similar to grassland levels in the ''Super Mario'' series.

Volcanic and lava-filled levels are typically later levels faced in the games. They feature [[lava]] and debris falling from the sky (usually being shot from background [[volcano]]es), and they often swarm with some of Bowser's stronger minions. Lava creatures and enemies such as [[Blargg]]s, [[Bully|Bullies]], Crowbers, and Lava Bubbles are very common here. As lava levels are faced later in the series, they are generally among the hardest levels in the game. The underground theme is a common overlap here, with these types of levels usually portrayed as taking place inside volcanoes themselves. Bowser's castles usually take place here and are also full of lava.